Fire extinguisher



Jan. 29, 1929.

c. A. BUERK ET AL FIRE EXTINGUI SHER Filed Jan. 18, 1926 Patented 29, 1929.

UNITED STATES CHARLES A. BUEBK JEAN DUTEY, OF CHICAGO, ILLINOIS.

FIRE EXTINGUISHEB.

Application ala January 1a, 1926. Serial 1%; 81,910.

v This invention relates to a fire extinguisher of the portable type,and is distinguished from the fire extinguishers now in use by reason ofthe fact that it is provided with at least two chambers, one-of which isdesigned to hold and dispense dry powder, while the other chamber isdesigned to hold and dispense a liquid. The principal object of theinvention is, therefore, to provide a unitary 1c and completeextinguisher of this kind, in

which both liquidand powder may be discharged at the same, and indifierent places,

at the same, or different times.

Fire extinguishers using dry powder as an extinguishing agent are knownto be highly effective and efficient. Flames are killed by beinginstantly smothered, which makes such apparatus incomparable for use onincipient fires of all kinds andespecially extra hazardous fires, suchas gasoline, oil, all inflammable liquids, and electric fires. On firesknown as class A fires (Underwriters Laborato'r Classification) on whichthe quenching an cooling efi'ect of a liquid 2 is of first importance,that is fires in ordinary combustible materials, such as wood,excelsior, rubbish, etc powder is unable, most of the time, to kill theembers which in time might cause a reignition.

The present invention provides, in the same apparatus,a dry powderdevice and a liquid extinguishing device, sothat, whenever necessary,the smothering effect of the extinguishing powder can be completed by anthe wetting and cooling efiect of the liquid emplo ed, or vice versa.The li uid employed may E e water, barbon ftetrac loride, antifreezesolution, or whatever liquid is best suited for the situation.

Referring more particularly to the drawings, Figure 1 is an elevation,partly in section, showing a fire extinguisher constructed in accordancewith the principles of this. invention; and Figure 2 is asectional'detail,

4e illustrating how the pressure cylinder may be divided into twoseparate cylinders and supported by the container.

In its preferred form, the present invention comprises a substantiallconical shell 1 so at the apex of which is a fix discharge nozzle 2,held in place by a. collar 8 and removable for the purpose of fillinthis end of the container. The base of q t e rece tacle is closed, andhas a dining cap 4 in w ich is a M check or safety valve 5 with aprotecting and supporting stand-6 projecting therefrom, by

means of which the fire extinguisher may be supported and may be handledor held while in operation.

' Intermediate the ends of the receptacle, and preferably nearer thebase, is a cross partition 7 which divides the receptacle into a basechamber and the apex chamber, the latter also being provided with acheck or safety valve 8. Gonnected through the outer side of thereceptacle, and communicating with the said chambers are tubularfittings 9 and 10, the one in the apex chamber having a spray nozzle 11adapting it to be used for powder. From the base chamber, a tubularmember 12. extends, to which is connected a flexible hose 13 with anozzle 14 at the end thereof.

Pressure may be applied. to the se arate chamber of the extinguisher inany or suitable manner through the fittings 9and 10. They may beconnected with any suitable source of air or pressure supply; but forportable use, it is desirable to have a portable pressure source aswell. For this purpose, a small cylinder 15, capable of withstandinghigh-pressure is provided atthe ends with;

valve fittings l6 and 17 which are connected to the tubular fittings 9and '10 by suitable couplings 18. Instead of having one cylinder 15 twosimilar cylinders 19 may be applied .to the chambers as described, andthe adjacent ends of these cylinders may be supported and attached tothe receptacle 1 by means of a tubular bracket 20 supported at the sideof the receptacle 1 as shown more clearly in Fi ure 2.

esired ith this construction, is is obvious that either or both of thechambers may be caused to discharge their contents separately by openingor closing the'valves 16 and 17, and

with a flexible hosefor one of the chambers,

the contents thereof may be discharged in a difierent direction thanthat from the first nozzle 2. The flames may be smothered by the powder,and the embers, whichvare danerous, may be wet down with the liquid romthe other chamber. The fluid under pressure in the cylinder or cylindersmay be air, 00,, or any suitable fluid, the pressure being sufficient tocompletely expel all the contents of both of the chambers of the extiuisher.

e claim:

- 1. A portable fire extinguisher in the form of an inverted cone havinga transversepartition therein dividing it into compartments, pressureholding means having a separate lot valved connection with eachcompartment, tubular discharging means leading from each compartment,and a flexible hose in'connection with one of the tubular means whichenables the discharge from one of said compartments to be directed inthe same direction as that from the other compartment or tents thereofat will with the said xed nozzle and away from it.

3. A portable fire extinguisher having closed pressure compartments forpowder and liquid, valved pressure holding means communicating with saidcompartments for separately and simultaneously expelling the contents ofthe compartments, means for directing the contents of said compartmentsat will in the same and in different directions, and separate safetyvalves for each of the compartments.

conical shell with an interior partition to form a truncated conicalbase compartment and with a fixed discharge nozzle at the apex of theshell,"pressure holding means having separate valved connections witheach of the compartments, and a flexible discharge hose for the basecompartment which enables the discharge from said compartment to bedirected in the same direction as that from the other compartment or ina different direction. 5. A portable fire, extinguisher having closedpressure compartments in the same container, pressure holding meanscomprising a separate valved'cylinder for each compartment, anddischarge means for directing rate valved container for each compartmentand arranged in line at the side of the receptacle, and means common tothe containers attached to the receptacle for holding the containersin'alignment.

7. In a fire extinguisher, means forming separate compartments, pressureholding cylinders havin valved connections for attaching them inividually to thecompartments, and common means attached to the saidcompartment formin means to extend over the adjacent ends of shecylinders when they are in alignment to protect them and hold them insuch position.

8. A portable fire extinguisher comprising a conical vessel with apartition near the base thereof adapted to form two separate closedcompartments the one near the apex for'containing powder and the othercompartment 4. A portable fire extinguisher having afor-containingliquid, the extinguisher being held with the cone in an invertedpositiom'a fixed nozzle at the apex of the cone pressure applying meanshavin separate valve connections with each 0 the compartments, meansattached to the outer wall of the extin uisher having a cylindricalportion for

